From: Brian <brian@yutani.localnet.net>
Date: Thu, 18 Jan 2007 01:21:00 +0000 (-0700)
Subject: do bounds check in _slang_push_var_table(), added comment
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=272622a2e016c2e378efd64f22b5e37e342a1f48;p=mesa.git

do bounds check in _slang_push_var_table(), added comment
---

diff --git a/src/mesa/shader/slang/slang_vartable.c b/src/mesa/shader/slang/slang_vartable.c
index f9121f740b2..6d2b4369d94 100644
--- a/src/mesa/shader/slang/slang_vartable.c
+++ b/src/mesa/shader/slang/slang_vartable.c
@@ -32,6 +32,8 @@ struct slang_var_table_
 
 /**
  * Create new table, put at head, return ptr to it.
+ * XXX we should take a maxTemps parameter to indicate how many temporaries
+ * are available for the current shader/program target.
  */
 slang_var_table *
 _slang_push_var_table(slang_var_table *parent)
@@ -139,7 +141,7 @@ alloc_reg(slang_var_table *t, GLint size, GLboolean isTemp)
    for (i = 0; i < MAX_PROGRAM_TEMPS; i++) {
       GLuint found = 0;
       for (j = 0; j < sz4; j++) {
-         if (!t->temps[i + j]) {
+         if (i + j < MAX_PROGRAM_TEMPS && !t->temps[i + j]) {
             found++;
          }
          else {